Speed-regulator



(No Model.) 2 `Sheets-Sheet l. F. HART.

SPEED REGULATOR. Pa-397,716. Patented Feb. l2, 1889.

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(No Model.) 2 Sheets-Sheet 2. F. HART.

v SPEED REGULATOR. No. 397,716. Patented Feb. 12, 1889.

M ZnvQnm Il z 2765606- UNITED STATES PATENT FREDERICK HART, OF POUGHKFFPSIE, NEYV YORK.

SPEED-REGULATOR'.

SPECLFIOATION forming part of Letters Patent No. 397,716, dated February 152, 1889.

Application tiled April l2, 1888. Serial No. 2707.448. (No model.)

To @ZZ whom t muy concern:

Be it. known that I, FREDERICK HART, of Poughkeepsie, in the county of Dutchess and State of New York, have invented new and usefulImprovements in Speed-Regulators, of which the following is a specification.

'lhis invention relates to a regulator whereby motion is transmitted to the driven machinerv at a practicallv uniform rate of speed irrespective of the variations of speed in the motor.

The object ot' my invent ion is to produce a simple regulator of this character; and my invention consists of the improvements which will be hereinafter full y set forth, and pointed out in the claims.

In the accompanyingI drawings, consisting of two sheets, Figure l is a longitudinal sectional elevation of inv improved regulator. Fig. 2 is a top plan view thereof, partlyv in section. Fig. 3 is an end view of the regulator, partlyin section. Fig. JC is a sectional elevation of the movable weights of the regulator and connecting parts on an enlarged scale. Fig. 5 is a longitudinal sectional elevation of the hub of the friction-wheel mounted on the driving-shaft of the regulator on an enlarged scale. Fig. 6 is a cross-section in line fr, Fig. 5. Fig. 7 is a top plan view showing my improved regulator connected with a. sweep horse-power. Figs. S, 9, and l0 are diagrams illustrating the different angles of the friction-wheel. aud its shaft.

Like letters of reference refer I'o like parts in the several figures.

a represents the main drivin g-shatt, which receives its motion from a horse-power, A, or any other motor. The shaft d may be composed of two or more sections connected by universal joints in a well-known manner.

A is a. large friction wheel or disk rigidlv secured to the main drivin g-shaft oy near the end thereof.

B represents the base or supportilig-frame of the regulator, which is formed with two standards, B B2. The outer portion of the main shaft o is mounted in a bearing, b, arranged at the upper end of the standard B.

C represents a U-shapcd frame arranged between the standards B t, and pivoted at its outer end to the upper end of the stand.H

ard B2, so that the inner endot' the frame can swing or vibrate vertically. 'lhe upper end of the standard Bv2 is biturcated, as shown in Fig. 3, andthe outer end of the frame C is pivoted between the jaws of the standard by horizontal pivot-bolts r, arranged in said jaws and entering depressions formed in opposite sides of the frame.

D represents an elbow-lever pivoted in a vertical position to the inner end of the movable frame (l and having its lower arm, d, arranged looselv in a socket or recess, d', formed in the adjacent side ot' the standard l. rlhe elbow-lever D supports the inner end of the frame C in such a manner the same is capable of a limited vertical movement bv moving the upper arm, IP, of the lever inwardly or outwardly, the inner end of the lower arm, d, of the lever acting' as a fulcrum on which the lever swings. The inner end of the rocking frame C' is guided in its vertical movements between two horizontal bolts, e, which are arranged in threaded lugs or ears e', formed at the upper end of the standard B on the inner side thereof. The inner ends of the bolts c. bear against -the fiat sides of the frame C and hold the latter against lateral movement.

F represents a hollow shaft .jtmrnalcl in bearings f f', arranged at opposite ends of the movable frame C, and G is a friction-wheel mounted on the shaft F and running in contact with the friction-disk A. The frictionwheel G is held against rotary movement on the shaft F, but is capable of longitudinal movement on the shaft F toward and from the periphery of the friction-disk A', so that by placing the wheel G at a greater or less distance from the ecute" .aid friction-disk the rotaryY speed of the frictionwheel and shaft F isinereased or diminished. The shaft F is provided on opposite sides with longitudinal feathers or ribs 71, which engage in corre` spending grooves, z, formed in the hub of the friction-wheel G.

'L' represents anti-friction rollers journaled in recesses formed in the hub of the frictionwheel G and. bearing against the feathers 71, so to reduce the friction between the parts. These anti-friction rollers are arranged on op posite sides of the shaft F, so asto bearagainst TOO those sides of the feathers against which the pressure is principally exerted in transmitting power from the friction-wheel to the shaft, as represented in Figs. 5 and j represents a spiral spring surrounding the outer end of the main shaft a and interposed between the end of t-he bearing b and acollar, j', secured to the end of the shaft. The spring j tends to draw the main shaft with the friction-disk A toward the friction-wheel (i and retains the disk in :forcible contact with the friction-wheel at all times.

7U' represents a shifting-rod arranged within the hollow shaft F and connected at its inner end to the upper arm, d2, of the elbow-lever D, so that upon moving the rod la inwardly or outwardly the inner end of the rocking frame Cpwill be raised or lowered th rough the medium of the elbow-lever.

L L represent two governor-weights pivoted to opposite sides of a collar, L', which is secured to the outer end of the hollow shaft F. These weights are provided on the inner sides of their pivots with short arms l, which project into the hollow shaft Fthrough openings formed in the same and in the collar L.

L2 represents a loose head, which is arranged within the hollow shaft F, and which is provided with arecess in which the arms Z of the governor-weights engage. The adjacent outer end of the shifting-rod Zr: is preferably provided with a number of detachable washers, n1, held in place on the rod by a screw, m. rlhe inner end of the loose head L2 bears against the outermost washer, so that the position of this head, the shiftingrod, and the governor-weights can be regulated by adding or removingl one or more of these washers.

n represents a spiral spring, which is arranged in the hollow shaft F around the rod k, and which bears with its inner end against a shoulder in the shaft F and with its outer end against a shoulder on the head L2, so as to retard the outward movement of the governor-weights.

Then the speed of the hollow shaft F is normal, it stands in a radial position opposite the face of the driving-disk A, and the friction-wheel G stands atright angles to the radius of the driving-disk at its point of contact with the latter, and consequently has no tendency to shiftits position on the hollow shaft F in either direction. lVhen the speed of the hollow shaft F increases above the normal, the governor-weights L L are thrown farther outwardly by centrifugal force, thereby moving the head L and rod 7;. inwardly or toward the center of the driving-disk A. This movement of the shifting-rod causes the lever D to raise the inner end of the rocking frame C with the shaft F, thereby placingthe gle with the radius of the disk A', as indicated in Fig. 9. The friction-wheel now moves on the shaft F toward the center of the disk,

whereby the speed is gradually reduced until the normal speed is restored and the frame C and shaft F have been returned to their normal position. Then the speed of the shaft F falls below the normal, the governor-weights move toward the shaft, thus allowing the shiftin g-rod to move outwardly and the inner end of the osci llatin frame C and its shaft F to descend by gravity. As the frame C descends, the friction-wheel is placed at an outwardly inclined angle to the radius, as indicated in Fig. l0, whereby it is caused to move toward the periphery of the friction-disk A. This causes the speed to increase until the normal speed is restored, ln this manner the friction-wheel is moved toward the center of the driving-disk when the speed of the drivingshaft increases and toward the periphery of the disk when the speed decreases, thereby maintaining a practicallyuniform normal speed of the hollow shaft F and the driven machinery connected therewith. The diagram Fig. S shows the position of the friction-wheel and its shaft in their normal posit-ion. The diagram Fig. 9 shows the friction-wheel and its shaft inclined inwardly, and the diagram Fig. l0 shows these parts inclined outwardly.

M represents the driving pulley or wheel, secured to the hollow shaft F, and from which the power is transmitted to the desired point by a belt or in any other suitable manner.

It is obvious that my improved regulator may be used in connection with all kinds of machinery in which it is desired to transmit the varying speed of a driving-shaft to the driven part at a practically-uniform speed.

My improved speed-regulator is particularly desi able for use in connection with sweep-powers, in which case it serves not only as a regulator, but performs also the function of the jack in increasing the speed.

I claim as my invention# l. In a speed-regulator, the combination, with the driving-disk, of a friction-wheel running in Contact with said disk, a shaft which is rotated by said wheel and on which the wheel. can move toward and from the center of the driving-disk, and a frame in which said shaft is mounted and which is movable in a plane parallel with the working-face of the driving-disk on one side of the center thereof, whereby said shatt can be placed at an angle to the radius of thedriving-disk and the friction-wheel can be placed at an angle to the direction of motion of the driving-disk at its point of Contact with the friction-wheel, substantially as set forth.

2. ln a speed-regulator, the combination, lwith the driving-disk, of a friction-wheel running in contact with said disk, a shaft which is rotated by said wheel and on which said wheel can move toward and from the center friction-wheel G at an inwardly-inclining anof the driving-disk, a pivoted bearing supporting said shaft near the periphery of the driving-disk, and a movable bearing supporting the shaft near the center of the driving- IOO IIO

from the radial line of the driving-disk, substantially as set fort-ll.

In a Speed-regulator, the combination, with the driving-disk, of a friction-wheel rullllingin eolltaet with Said disk, a Shaft which is rotated b v said wheel aud on which the wheel eau move toward and from the center of the drivillgalsk, a ulovable frame in whiell Said shaft is mounted, alld whereby Said Shaft can be plaeed at varying,l ang-les, and a governor wherebyY the position ol' the frame is autolllatieally adjusted, substantially as Set forth.

4. The oolllbiuation, with the driving-disk A', of a Stationary frame, B, all elbow-lever, l

D, supported ill Said tralne,a lllovalglle frame, (l, pivoted at olle end in Said frame and attached at its opposite end to said elbow-lever, a hollow shaft, F, journaled ill Said frame, a shifting-rod, 7u, arranged in said shaft and The combination, with the driving-disk l' of the movable frame C, a hollow Shaft, F, journaled ill the same and provided witll a feather, 71, and a friction-wheel, G, mounted on the Shaft F and provided ill it@ hub with an anti-friction roller, bearingl aguliuSt I aid feather, Subetalltiallv as Set forth.

o'. The Colllbillatioll, with the drivillgalisk A', ot' the Stationary .trame B,1lle movable frame C, the elbow-lever D, the hollow shaft 3 F, jourllaled ill the frame (l, the shifting-rod f, arranged ill ille Shaft l", ille governori weights L, pivoted to the shaft l, the head L', arranged ill said shaft and eolllleeted with the governor-weigllts,and the washers m, interposed betweeu the Shifting-rod L' and ille head L', substantially as Set forth.

lvitneasllrv hand tlliS lith dav ot April, l SSR.

FREDERTCK UART',

connected at one end with said elbow-lever, a l

lVlllesseS:

J. l. WAKELEE, A. SEDGWICK. 

